/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use
 * this file except in compliance with the License. You may obtain a copy of the License at the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>Unless required by applicable law or agreed to in writing, software distributed under the
 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apereo.portal.rendering;

import javax.portlet.WindowState;
import javax.servlet.http.HttpServletRequest;
import org.apereo.portal.portlet.om.IPortletWindow;

/**
 * Custom attribute source that can override the window state.
 *
 * <p>This is intended for the JSON layout theme where it puts all the portlets in minimized mode to
 * reduce render cost. It previously tried to set the windowState on the PortletWindow object and
 * then used a flag to disable writing the window state to the DB. Because the PortletWindow is
 * cached in the session, it would still break the layout for each subsequent render in that session
 * though. New approach is to not modify the PortletWindow and just customize the channel XML tag
 * attributes without ever updating the PortletWindow or persisting the windowState change.
 *
 * <p>See UP-4364
 *
 * @since 4.2
 */
public class WindowStateAttributeSource extends PortletWindowAttributeSource {
    private WindowState windowState;

    public void setWindowState(final WindowState windowState) {
        this.windowState = windowState;
    }

    @Override
    protected WindowState getWindowState(HttpServletRequest request, IPortletWindow window) {
        if (windowState != null) {
            return windowState;
        }

        return super.getWindowState(request, window);
    }
}
